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Mathematics ECAT Pre Engineering Chapter 15 Inverse Trigonometric Functions Online Test MCQs With Answers
Question # 1
Sin-1(-x)=
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x
-x
-sin-1 x
cos-1 x
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Question # 2
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Question # 3
cos
-1
(cos x) =
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x
cos x
x = 1/x
cos
-2
x
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Question # 4
The range of the principle cos function is
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Question # 5
sin (sin
-1
(1/2))=
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0
2
∞
1/2
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Question # 6
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1
-1
0
None of these
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Question # 7
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Question # 8
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0
-1
1/2
1
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Question # 9
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Question # 10
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1
0
3
-3
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Question # 11
Cos (cos4π/3)=
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π/2
π/3
2π/3
-π/3
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Question # 12
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